A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 513
g expansion, and the line becomeshhd; instead of h c. When the attempt is made to restorethe rejected fluid to the boiler, the compression would natu-rally cause the line d k b to be retraced; but having re-moved the water of condensation from the engine separate-ly, it cannot add, by its… … ^—^ Era. 148. energy represented by the area eb k die, and the expendi-ture of an equivalent amount of heat-energy, plus theamount of energy required to return the water of condensa-tion to the boiler. Had, in this case, the steam been cut offat an earlier point in the stroke, as at e, the area enm…
Steam-engines
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